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Hi guys,
I just replaced my FICM with one of Ed's great Modules. install went easy and truck runs noticeably better. Most of the error codes went away but one, "P0672 Cyl 2 Glow plug circuit" returns and a new one "P1000 OBD Systems Readiness test not complete" Anyone have any ideas about this? could it be a Glow plug Module or is it more likely a glow plug itself. ? More disturbing is the OBD readiness test not complete error?
Ohm the glow plug harness to see if you've got a bad glow plug. As Tyler said, the P1000 is a default code for several things...replacing both batteries will do that as well.